code: def test_maybe_booleans_to_slice(self):
      arr = np.array([0, 0, 1, 1, 1, 0, 1], dtype=np.uint8)
      result = lib.maybe_booleans_to_slice(arr)
      assert result.dtype == np.bool_
  
      result = lib.maybe_booleans_to_slice(arr[:0])
      assert result == slice(0, 0)
  
imports: import numpy
  import pytest
  from pandas._libs import Timedelta, lib, writers
  from pandas.compat import IS64
  from pandas import Index
  import pandas._testing
label_desc: Use image node_id 11 for calling the TestIndexing obj's underlying member method code with example usage: obj.test_maybe_booleans_to_slice() without return types